SINCE 1997,HNA has been an integrated engineering & manufacturing specialist recognized worldwide for its unique INVESTMENT CASTING, WORLD TOP CLASS HEAT TREATMENT, PRECISE MACHINING Technology and high quality products in the O&G industry, by designing and fabricating HNA Shear Relief Valve and Assembly Parts for Duplex, Triplex and Quintuplex pumps, which are 100% interchangeable to most of the global famous brands: Bomco, Honghua, TSC, Weatherford, Ellis Williams, Gardner Denver, Emsco , National, Oilwell, Ideco, Drillmec & other major types of models, and customized design and production available.  

Features:   

* Cast JA-3 Shear Relief Valve Assembly

* World Top Class Heat Treatment & Multi-Spindle CNC Machining ensure highest product quality exceeding API standard requirements

* Strict QC and Inspection Procedures guarantee better performance and longer service life

* Rated for drilling operation Pressure maximum 7500 PSI

* Extremely Long Service Life Exceeding API Standard

* JA-3 Shear Relief Valve Assembly includes: piston, piston rod, valve, pin, plate, cushion pad ,O-Ring, screw & nut, etc.

* Fully interchangeable with major pump models and fluid end types

* Product Series:

HNA-FE-SV  : HNA JA-3 Shear Relief Valve and Assembly Parts

Customized Specific Design & Series of HNA JA-3 Shear Relief Valve and Assembly Parts-- API/Non-API Standard